#! /bin/bash

### frontend-2of3.txt. The sequel of frontend-1of3. This script is effective only after the frontend rebooted at the end of this script'

#HOSTNAME=hostname

# Configure nfs server in the frontend (refer to https://www.itzgeek.com/how-tos/linux/centos-how-tos/how-to-setup-nfs-server-on-centos-7-rhel-7-fedora-22.html)

mkdir /export/share
chmod 777 /export/share
chmod 777 /export/share/home

mv /etc/exports /etc/exports.orig

node1='/export 192.168.1.21/24(rw,sync,no_root_squash)'
node2='/export 192.168.1.22/24(rw,sync,no_root_squash)'
node3='/export 192.168.1.23/24(rw,sync,no_root_squash)'
node4='/export 192.168.1.24/24(rw,sync,no_root_squash)'
node5='/export 192.168.1.25/24(rw,sync,no_root_squash)'
node6='/export 192.168.1.26/24(rw,sync,no_root_squash)'
node7='/export 192.168.1.27/24(rw,sync,no_root_squash)'
node8='/export 192.168.1.28/24(rw,sync,no_root_squash)'
node9='/export 192.168.1.29/24(rw,sync,no_root_squash)'
node10='/export 192.168.1.30/24(rw,sync,no_root_squash)'
node11='/export 192.168.1.31/24(rw,sync,no_root_squash)'
node12='/export 192.168.1.32/24(rw,sync,no_root_squash)'


echo $node1 > /etc/exports
echo $node2 >> /etc/exports
echo $node3 >> /etc/exports
echo $node4 >> /etc/exports
echo $node5 >> /etc/exports
echo $node6 >> /etc/exports
echo $node7 >> /etc/exports
echo $node8 >> /etc/exports
echo $node9 >> /etc/exports
echo $node10 >> /etc/exports
echo $node11 >> /etc/exports
echo $node12 >> /etc/exports

systemctl start nfs-server rpcbind
systemctl enable nfs-server rpcbind
exportfs -ra

#We need to configure the firewall on the NFS server to allow NFS client to access the NFS share. To do that, run the following commands on the NFS server.

firewall-cmd --permanent --add-service mountd
firewall-cmd --permanent --add-service rpc-bind
firewall-cmd --permanent --add-service nfs
firewall-cmd --reload


# create shared folders /share/cluster, /share/tmp, /share/home, /share/apps

mkdir -p /export/share/apps/configrepo
mkdir -p /export/share/apps/local/bin
mkdir -p /export/share/home
mkdir -p /export/share/apps/configrepo/users_data
mkdir -p /export/share/tmp
mkdir -p /export/share/cluster

cd /
rm -rf share
ln -s /export/share .

cd /share/apps/configrepo
chmod -R 755 /share/apps/
chmod -R 777 /share/home
chmod -R 700 users_data/
chmod -R 777 /share/tmp


### replace /etc/hosts by /share/cluster/hosts
cp /etc/hosts /etc/hosts.orig
mv /etc/hosts /share/cluster/
ln -s /share/cluster/hosts /etc/
echo 192.168.1.10 $HOSTNAME.local   $HOSTNAME >> /share/cluster/hosts


reboot